As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF NOSE LANDING GEAR WOULD NOT LOCK UP. RED LIGHT ON, RECYCLED TWICE STILL NO LOCK UP. HELD UP BY HYDRAULIC PRESSURE, AIRCRAFT RETURNED. NOSE LANDING GEAR HYDRAULIC MODULE REPLACED. NOSE LANDING GEAR UPLOCK ACTUATOR REPLACED, GEAR LUBRICATED.